_PCH_TRANS_HBLANK_A 2225 drivers/gpu/drm/i915/gvt/handlers.c 	MMIO_D(_MMIO(_PCH_TRANS_HBLANK_A), D_ALL);
_PCH_TRANS_HBLANK_A 8264 drivers/gpu/drm/i915/i915_reg.h #define PCH_TRANS_HBLANK(pipe)		_MMIO_PIPE(pipe, _PCH_TRANS_HBLANK_A, _PCH_TRANS_HBLANK_B)